 // 从后端得到的数据
 //模拟手机产品

 var my_skus = [
        // {'skuno':'9527','attr':{'颜色':'黑色','版本':'标准版','内存':'128G'},'stock':'12','price':'79'},
        {'skuno':'8527','attr':{'颜色':'黑色','版本':'NFC版','内存':'128G'},'stock':'99','price':'91'},
        {'skuno':'8527','attr':{'颜色':'黑色','版本':'NFC版','内存':'256G'},'stock':'99','price':'91'},
        {'skuno':'7527','attr':{'颜色':'红色','版本':'标准版','内存':'128G'},'stock':'11','price':'8'},
        {'skuno':'6527','attr':{'颜色':'红色','版本':'NFC版','内存':'128G'},'stock':'12','price':'80'},
        {'skuno':'6527','attr':{'颜色':'红色','版本':'NFC版','内存':'256G'},'stock':'12','price':'80'},
        {'skuno':'7527','attr':{'颜色':'蓝色','版本':'标准版','内存':'128G'},'stock':'11','price':'8'},
        {'skuno':'6527','attr':{'颜色':'蓝色','版本':'NFC版','内存':'128G'},'stock':'12','price':'80'},
        {'skuno':'6527','attr':{'颜色':'蓝色','版本':'NFC版','内存':'256G'},'stock':'12','price':'80'},
    ];
    var my_attr_array = {
        '颜色':['黑色','红色','蓝色','紫色'],
        '版本':['标准版','NFC版'],
        '内存':['128G','256G']
    };